Komatsu 200 excavator emergency lamp. Crawler excavators Komatsu. Productivity is above all

Exactly crawler excavator   became a participant in our next test-dating. Familiarization with the elegant construction machine - PC200-7 - took place on the territory of the company "Agema".

The digits in the excavator index indicate the operating weight and the serial number (generation) of the model produced. In this case (PC200-7) - 200 centners or 20 tons and the seventh generation. Excavator   is part of the Komatsu line of construction equipment, called Galeo, which features improved features such as performance, safety and environmental friendliness. In terms of improving environmental performance, there are: reduced fuel consumption, reducing emissions to the atmosphere, as well as the thoughtfulness of further processing of all components used in the design. For this purpose, the materials that are optimal for processing and recycling are used, and for simplification of recycling, details are also marked on the part, facilitating their quick identification.

This model of the excavator has implemented many innovative ideas that lead the car to the avant-garde world level. In particular, the system of automatic adjustment of the digging force is applied, the service intervals are increased, and the digging power is increased.

As the power unit is used in-line six-cylinder turbodiesel with intercooler capacity of 145 hp. The engine meets the requirements of the Tier II Environmental Protection Agency of the United States, the EU and Japan for the toxicity of exhaust gases. In the fuel supply system there is a filter-moisture separator, thanks to which the expensive injection system is protected from damage.

On the upper platform, near the engine compartment, convenient handrails are installed. For safe movement, there are also anti-slip cover plates. Access to the engine and filters is as easy as possible - for ease of maintenance. Latch top and side of the turntable open with a key and provide access to all systems excavator. For example, it is much easier to change the engine oil and filter, and easier access to the radiator - to clean the cells with compressed air. On the inner surface of these doors is applied a porous soundproof coating, which reduces the level of sound pressure during operation.

The entrance to the excavator's cab is facilitated thanks to several handrails. A spacious cabin pleases with a magnificent circular view and carefully verified ergonomics. As in most models of this technique, there is a blocker of random movements - in the form of a "minicail-bar" at the entrance to the cabin. To begin work, it is necessary, sitting in the armchair, to install the "barrier" -blocker in a horizontal position.

All the necessary information is displayed on modern and compact displays located on the side of the operator. The seat with air suspension, armrests and a lot of adjustments has a wide range of movement. And there is an opportunity to move it, as with the joystick control, and separately. The sprung cockpit platform has a low level of vibration. This was achieved thanks to the multi-layer spring-hydraulic suspension system.

During operation, you can slightly open the sliding window on the door or the sunroof. If necessary, you can also leave the door open by placing it on the lock on the open position. In a well sealed cabin, in conditions of heavy dusting in the street, it is possible to create an overpressure that prevents the ingress of dust into the interior. In this version, you can also use the air conditioner with additional nozzles for heating the windows. There is also a radio with a digital radio.

Perhaps, the main "highlight" of this excavator   - HydrauMind system, in which the hydraulics is controlled by a clever hydromechanical device using electronics. Thanks to this component, fuel is significantly saved. With the help of load-sensing valves and pressure compensation, depending on the force at a given time, it is possible to continuously increase or decrease the performance of the engine and hydraulic system, thereby optimizing fuel consumption. Since during the operation of the excavator only a small amount of time is required for maximum productivity, an essential part of the time is spent on simple rotations of the platform with or without load. It is in such movements that it is possible to reduce engine or hydraulic pump speeds, significantly saving fuel. This intelligent system, consisting of several sensors and 2 hydraulic pumps, operates over the entire range of operating conditions and ensures efficient use of engine power, and also reduces hydraulic losses during operation of the excavator.

The digging power includes such parameters as digging force and bucket digging speed. In this model, in comparison with the predecessor (PC200-6), it was possible to increase both, and other indicators. As a result, the digging power increased by 29%. Attractive here and the maximum height of digging - it reaches an impressive 10 meters. And due to the increased transverse stability, it was possible to increase the maximum load capacity.

On the boom of this specimen a bucket with a volume of 0.8 m3, with detachable teeth and lateral incisors is installed. The boom and handle are made using the method of continuous welding with cutting edges, which allowed to increase the digging force.

The hydraulic control system provides three fixed modes designed to optimize engine speed, hydraulic pumps and hydraulic system pressure - in each of the most common types of work. The list of fixed modes can be used: "active", "economical" and "breaker mode". There is also an auxiliary "lifting mode" in which the hydraulic system pressure increases by an additional 7%. All these modes can be turned on using the buttons on the right multifunction display. Electronics monitors the level of oil in the engine - when the level drops to the minimum level, a message is displayed on the display. A warning will appear and, if necessary, change the oil and filter in the engine. The error codes are also output here - if there is a malfunction in any excavator system.

To simplify the work in the dark, headlights are provided on the platform, cockpit and boom. In addition, for the convenience of movement and work here installed two rear-view mirrors.

When performing work, the smooth and precise movements of the boom and bucket are noticeable with a complete absence of jerks. In this regard, we recall spectacular frames of presentations komatsu excavators, which can be found on the Internet. During demonstration performances, such machines cut the watermelon with a knife attached to one of the bucket teeth, or pour the champagne into the wine glass from a bottle attached there.

In general, this car harmoniously combines an attractive, modern appearance and technical perfection of the whole design. And, of course, the most up-to-date equipment of the operator's cab: not every truck or car will meet such a meticulously verified internal "stuffing". In a word - a worthy choice in this segment of construction equipment.

Specifications of the excavator KOMATSU PC 200-7

High productivity and low fuel consumption

1. Engine.   The KOMATSU PC200-7 excavator has exceptional power and performance thanks to the Komatsu SAA6D102E-2 engine installed on it. This engine develops a power of 107 kW (143 hp), providing increased hydraulic power. Model PC200-7 has a lower fuel consumption.

2. Hydraulic system.   The hydraulic system, equipped with two pumps, ensures a smooth movement of the working equipment. The HydrauMind control system manages two pumps, thereby ensuring efficient use of engine power. This system also reduces hydraulic losses during operation of the KOMATSU PC200-7 excavator.

3. Digging height.   The maximum digging height of the excavator KOMATSU PC200-7 is 9.5 m, which makes it easier to perform work that requires a significant boom outreach, such as destruction of structures and finishing of slopes.

4. Carrying capacity. On the excavators PC200-7 improved lateral stability, which contributed to an increase in load capacity. Example: the transverse load capacity [with a boom radius of 6.1 m (20 ft) and a height of 4.6 m (15 ft)] increased from 3.55 t (3.9 short tons) to 3.9 t (4.3 short tons).

Three operating modes of excavator KOMATSU PC200-7

Excavator KOMATSU PC200-7 has three operating modes - A, E, B. Each of the three modes is designed to bring the engine and pump speed, as well as the pressure in the hydraulic system in accordance with the nature of the work. This provides flexibility in the operation of the machine, which consists in matching the characteristics of the equipment with a particular type of work.

1. Active mode (A).   Maximum performance and power, short cycle elements.
2. Eco mode (E).   Excellent fuel economy.
3. Hydraulic breaker mode (B).   The optimum value of the engine speed and hydraulic pump supply.

The economic regime is favorable for the environment. The fuel consumption is reduced by 20% (compared to the active mode of the excavator KOMATSU PC200-7), and the performance is equivalent to the performance of the KOMATSU PC200-6 excavator when working in heavy duty.

Excavator KOMATSU PC200-7 has a function of maximum cutting force, this temporarily increases the cutting force by 7% when working with hard rocks.

Self-diagnosis monitor of excavator KOMATSU PC200-7

The KOMATSU PC200-7 excavator is equipped with the most modern diagnostic system in the industry. The system identifies maintenance operations, shortens the duration of the diagnostics, displays the timing of oil and filter replacement, and displays error codes.

1. System for continuous monitoring of the state of machine systems.   When you set the key switch to ON, a message appears on the LCD panel indicating a pre-start check and a safety warning. When an emergency condition is detected, the warning light comes on and an audible warning is activated. Continuous checks on the condition of the excavator systems prevent serious malfunctions, which will allow the operator to focus on work.

2. Display of abnormal states of the electronic system. It is carried out by means of diagnostic codes. If a malfunction occurs during operation of the KOMATSU PC200-7 excavator, a diagnostic code is displayed. In this case, the alarm lamp starts flashing, and an audible alarm sounds, warning of a malfunction, this helps to avoid serious malfunctions in the machine.

3. Oil change warning function.   If the oil or filter change period is missed, the corresponding maintenance control indicator lights up.

A spacious and comfortable cab of the excavator KOMATSU PC200-7

1. Sealed cabin with air conditioning, installed on an additional order. When installing an optional air conditioner and due to the presence of an air filter and an increased internal air pressure, dust does not enter from outside the cabin.

2. Low noise design. Significantly reduced noise level when turning the platform and unloading the hydraulic system.

3. Low vibration level. The model KOMATSU PC200-7 uses a new advanced damper system for the cabin, which uses a long stroke and an additional spring. This helps to reduce the vibration level at the operator's seat.

4. Comfort cab. The internal volume of the new cab of the excavator KOMATSU PC200-7 provides extremely comfortable conditions for the operator's work. A spacious cabin allows you to tilt the seat back with a headrest to the floor.

Reducing maintenance costs for the KOMATSU PC200-7 excavator

The developed high-strength bushings from the sintered steel-copper alloy are used on the ladle and the upper axis of the handle, tungsten carbide is introduced into the end surfaces of the inserts. The intervals between lubricating all the bushes of the work equipment increase from 100 to 500 hours, which reduces the cost of maintenance.

The manufacture of high-strength bushings from a sintered steel-copper alloy is based on metallurgy of powder ferroalloys (carburization). These bushings contain a special lubricant in the pores in which solid particles are introduced to increase wear resistance and protect them from scratches.

Tungsten carbide is injected into the end surfaces of the upper sleeve of the handle, forming a strong film, which reduces wear on the contact surfaces and reduces vibration of the bucket.

Equipment to be ordered by excavator KOMATSU PC200-7

1. Air conditioning with a window heating system
   2. Alternator for alternating current, 60 A, 24 V
   3. Handles in the assembly
   - Length 2925 mm (9 feet and 7 inches)
- a length of 2410 mm (7 feet and 11 inches)
   - length 1840 mm (6 feet 0 inches)
   4. High-capacity rechargeable batteries
   5. Removable top shield [operator protection fence, level 2 (FOG)]
   6. An arrow of length 5700 mm (18 feet and 8 inches)
   7. Cabin accessories
   - Protective visor against rain
   - Sun visor
   8. Front guard of the cabin
   - to the full height
   - half the height
   9. A heater with system of heating of glasses
  10. High-strength bushings made from sintered steel-copper alloy for working equipment
  11. Multifunctional color monitor
  12. Rearview Mirror (left)
  13. Belt of inertial type
  14. Seat on elastic suspension
  15. Service valve
  16. Crawler shoes with built-in clamps
  17. Lower crawler frame protection
  18. Protective rails of the support rollers (for the entire length of the caterpillar belt)
  19. The device of giving of a sound signal of the prevention of moving
  20. Working lights
   - 2 on the cockpit
   - 2 on the counterweight